Miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna

Abstract

The invention discloses a miniaturizedlinear polarization, dual polarization, circular polarization and triple polarization 5G antenna, which is characterized in that two orthogonal capacitive slits in transverse and longitudinal directions are formed in a Mushroom structure in a traditional metamaterial to form a novel electromagnetic metamaterial resonator structure, namely an annular resonator,so that a negative first-order resonance mode is excited; impedance, field distribution and radiation characteristics similar to those of a traditional positive first-order mode are achieved while miniaturization design is achieved. Through proper coupling feed excitation or other coaxial back feed and differential feed modes, miniature linear polarization, dual polarization, circular polarization and tri-polarization antenna design is realized, open-circuit microstrip line branches are connected in series on a floor back coupling feed line, and a new resonance mode is introduced, so that double resonance points appear in a band, the antenna bandwidth is effectively expanded, and the antenna performance is improved. And the bandwidth requirement of a 5G new frequency band is met. In addition, a standard system metal screw is adopted for supporting and a small number of dielectric substrates are adopted, so that dielectric loss is reduced as much as possible, and high radiation efficiency is kept.

Description

technical field [0001] The invention relates to the technical field of 5G antennas, in particular to a miniaturized linear polarization, dual polarization, circular polarization and triple polarization 5G antenna. Background technique [0002] With the rapid and comprehensive advancement of wireless communication applications in the new 5G frequency band and other sub 6GHz frequency bands, wireless communication systems pose new requirements and challenges for antenna performance, and there is an urgent need to develop 5G antennas with miniaturization, wide bandwidth and high radiation performance . At the same time, in order to adapt to complex and changeable application scenarios, effectively improve multipath effects in propagation and increase channel communication capacity, the development of multi-polarized antennas (dual-polarized, circular-polarized and triple-polarized antennas) is particularly important. At present, in order to meet the demand for wide bandwidth i...

AI Technical Summary

Problems solved by technology

The traditional three-polarized antenna, which uses a substrate-integrated waveguide to load an orthogonal dipole three-polarized antenna and a patch-loaded three-polarized antenna, has the disadvantages of large antenna size, high antenna profile and narrow bandwidth.

The substrate integrated waveguide and the triple-polarized antenna loaded by the dual-polarized patch have problems such as large antenna size

Traditional miniaturized antennas usually use methods such as loading a high dielectric constant substrate, slotting the antenna surface, and bending the antenna length. This type of miniaturized antenna has the problems of narrow operating bandwidth, large antenna loss, and poor antenna radiation performance.

Therefore, the miniaturized multi-polarized antenna developed by traditional technology is still difficult to meet the needs of 5G broadband communication.

[0003] To sum up, the current multi-polarized antennas used in 5G new frequency bands and sub 6GHz applications all have shortcomings such as large size, limited bandwidth, and low radiation efficiency, which are difficult to apply to the antenna application requirements of indoor and other miniaturized systems.

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